Mounting for diamond-set tools



F. J CORVILAIN Y MICHEL. MOUNTING FOR DIAMOND SET TOOLS.

APPLICATION FILED AUG.20, l920.

Patented Mar. 8, 1921.

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UNITED STATES PATENT OFFICE.

MOUNTING FOR DIAMOND-SET TOOLS.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed August 20, 1920. Serial No. 404,955.

To all whom it may concem Be it known that I, FERDINAND J ULES CoRvILAINY MICHEL, a subject of the King of Belgium, and residing at Bilbao,Spain, have invented a certain new and useful Imrovement in Mountingsfor Diamond-Set Tools, of which the following is a specification.

This invention relates to improvements in tools set with diamonds in acrown plece, such, for example, as that shown and described in U. S.Patent No. 1,030,284, dated June 25, 1912.

In the production of the improved mount the diamond is mounted on oneend of a copper wire and electrolytically coated with a deposit ofcopper. The wire and copper deposit are then turned down to the form ofa cylinder merging into a truncated cone in which latter the diamond isembedded and from which the working face of the diamond projects oremerges, so much of the cylindrical portion being cut off as is necessarto effect the required adjustment.

he residual cylindrical portion and conical portion may then beintroduced in the socket of the crown piece and will be solidlymaintained in place.

In the accom anying drawings Figures 1 to 7 inclusive, illustrate theimproved method of production of the mounting and also show thecompleted mount.

In the drawing 1 is an elevation and Fig. 1 a plan showing a wire 1 ofsoft pure copper of a diameter of about 8 mm. on whic As shown in Figs.2 and 2, the wire is drilled at 2 to a depth approximately equal to theheight of the diamond so as to form the wire with a tubular end, thewalls of the tube having a thickness slightly less than 1 mm.

wire the diamond is to be mounted.

As shown in Fig. 2, a hole 3 is also drilled in the wire near the otherend at right angles to the axis of the wire.

As shown in Figs. 3 and 3, the tubular end 1s then sawn with an ordinahack-saw to the depth of the part that has been drilled, leavlng fourfingers 4. The fingers are heated and allowed to cool so as to renderthem as pliable as possible.

As shown in Figs. 4 and 4, the diamond 5 1s then mounted between the.four fingers 4, being given the right position with the aid of ordinarypliers, the working face of the diamond being on top.

A hook is now passed throu h the smal hole 3 and the copper wire isipped in'an electrolytic copper bath. Electrolytic copper wire isdeposited as shown at 6 in Figs. 5 and 5. The diamond remains embeddedin the copper and is tightly fastened.

The copper wire with copper deposit thereon is then placed on a latheand the truncated cone 7 or 8 cut down, as shown in Fig. 6 or in Fig. 7,depending on the size of' the diamond and the angle desired.

I claim,

The improved method of producing a diamond mounting for a diamond settool of the type referred to, consisting in mounting the diamond on oneend of a copper wire,

coating it electrolytically with a deposit of copper, and then turningdown the wire and de osit to the required form.

n testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FERDINAND JULES CORVILAIN y MICHEL.

Witnesses: I

KATE Fo rnnRLNonAM, ISABEL

